diff --git a/xCAT-server/debian/postinst b/xCAT-server/debian/postinst
index 5988fcf27..270fee7cd 100644
--- a/xCAT-server/debian/postinst
+++ b/xCAT-server/debian/postinst
@@ -34,14 +34,6 @@ case "$1" in
             rm /tmp/xCAT-server_upgrade.tmp
 	fi
 	ln -sf /opt/xcat/sbin/xcatd /usr/sbin/xcatd
-    #SHA1 has been get rid of after Squeeze released. Its functionality is also provided by Digest::SHA (which is in core).
-    #but ipmi.pm need SHA1.pm, so create this link
-    shalocate=`find /usr/lib/perl -name "SHA.pm"`
-    shalocate=${shalocate%SHA.pm}
-    cd $shalocate
-    if [ ! -e SHA1.pm ];then
-        ln -s SHA.pm SHA1.pm
-    fi
     cd -
     ;;